Title :
Reduction of Temperature Coefficient of Capacitance in Microwave Ferroelectric Devices
Author :
Gevorgian, S. ; Petrov, P. ; Ivanov, Z. ; Kollberg, E.
Author_Institution :
Department of Microelectronics, Chalmers University of Technology, Gothenburg, Sweden; Ericsson Microwave Systems, Moelndal, Sweden
Abstract :
A simple method is proposed (and verified experimentally) to reduce the Temperature Coefficient of Capacitance (TCC) in tuneable ferroelectric devices. It suggests use of two or more layers of ferroelectrics with different Curie temperatures to achieve temperature stabilisation, high tuneability, and small losses.
Keywords :
Capacitance; Electrodes; Ferroelectric devices; Ferroelectric films; Ferroelectric materials; Microwave devices; Permittivity; Substrates; Temperature; Varactors;
Conference_Titel :
Microwave Conference, 2001. 31st European
Conference_Location :
London, England
DOI :
10.1109/EUMA.2001.339073
